APM: 0 Location: SR 242 and I-680, Concord As SR 242 begins, we’ll enter Concord. APM: 0 Location: SR 242 and I-680, Concord Reassurance shield as 242 begins. APM: 0 Location: SR 242 and Clayton Rd, Concord After Clayton Rd, we’re 2.25 miles from SR 4 and the north end of SR 242. APM: 2 Location: SR 242 and … Continue reading California State Route 242, I-680 to SR 4